Atomizing disc for rotating atomizer

The utility model discloses an atomizing disc for a rotating atomizer. The atomizing disc comprises upper covers, lower covers, a curve chassis, nozzles and nozzle carriers, wherein the atomizing disc is a key component of the rotating atomizer, is installed at the tail end of a rotating shaft of the rotating atomizer and is connected with the rotating shaft through a fixing device; 8 wear-resistant nozzles are installed on each atomizing disc; the number of the nozzles to be installed can be adjusted based on actual use conditions; in the operation of equipment, solution (lime slurry) enters the disc from the upper covers, passes through the curve chassis, flows out of Venturi-shaped nozzles at the periphery of the upper covers, and is thrown out and atomized to be tiny liquid drops by the action of centrifugal force. The atomizing disc has the advantages of adopting a compact structure, realizing uniform atomization, prolonging the service life, and reducing energy consumption and operation cost; all the curve chassis and the nozzles are made of silicon carbide; and the atomizing disc can be widely used for the rotating atomizer of a semi-dry type flue gas purification system in a burning power plant and a related spray dryer.